Atlantis

Athanasius Kircher's map and positioning of Atlantis "from Egyptian and Plato's descriptions."

Ignatius Donnelly's map of "The Empire of Atlantis" (from Atlantis: The Antediluvian World, 1882)

Lewis Spence's maps of Atlantis in different periods: the first in Tertiary Times with Hyperborea in the Arctic; the second in relation to Antillia. (Both from The History of Atlantis, 1927)

Frederick S. Oliver's map of Atlantis (from A Dweller on Two Planets, 1905)

Atlantis (from Ἀτλαντίς, "island of Atlas", one of the Titans of the ancient Greek religions) is the name of a legendary island and civilization, held by some as an allegorical myth, purely the invention of the Platonic school, and by others as a formerly existing island and resident civilisation, now sunk beneath the ocean following a great cataclysm (similar to Kumari Kandam, Lemuria, or Mu).

Reading

• Newman, John B. (1849), Origin of the Red Men: an Authentic History of the Peopling of America by the Atlantians and Tyrians; the Origin of the Toltecs, the Description and History of Atlantis, New York: John C. Wells, https://archive.org/details/originofredmenau00newm_0 
• Donnelly, Ignatius (1882), Atlantis: The Antediluvian World, New York: Harper & Brothers, https://archive.org/details/atlantisantedilu00donnuoft 
• Blacket, W. S. (1883), Researches into the Lost Histories of America: Or, The Zodiac Shown to be an Old Terrestrial Map in which the Atlantic Isle is Delineated; So that Light Can be Thrown Upon the Obscure Histories of the Earthworks and Ruined Cities of America, London: Trübner & Co. 
• Buelna, Eustaquio (1895), La Atlántida y la Ultima Tule, México: Oficinia Tip. de la Secretaría de Fomento, https://archive.org/details/laatlantidaylaul00buel  — (English: Atlantis and Ultima Thule; in which the author proposes that Atlantis was Aztatlan, Aztlán, ancestral home of the Nahua - Aztec - people, based on interpretations of Aztec pictography.)
• Spence, Lewis (1927), The History of Atlantis, London: Rider & Co., https://archive.org/details/historyofatlanti00spenuoft 
• Stacy-Judd, Robert B. (1939), Atlantis: Mother of Empires, Los Angeles, Calif.: De Vorss & Co. 

Esoteric Accounts

Being texts that have been received partly or wholly from spirit or other curious sources, reputing to be of Atlantean origin or otherwise possessing knowledge of Atlantis.

• Scott-Elliot, William (1896), The Story of Atlantis: a Geographical, Historical, and Ethnological Sketch; Illustrated by Four Maps of the World's Configuration at Different Periods, London: Theosophical Pub. Society, https://archive.org/details/storyofatlantisg00scot 
• Phelon, W. P. (1903), Our Story of Atlantis: Written Down for the Hermetic Brotherhood, San Francisco, Calif.: Hermetic Book Concern, https://archive.org/details/storyofatlantis00phelrich 
• Phylos the Thibetan; Oliver, Frederick S. (1905), A Dweller on Two Planets, or The Dividing of the Way, Los Angeles, California: Baumgardt Publishing Co., https://archive.org/details/dwellerontwoplan00oli  — (includes an account of the life of Zailm Numinos, an Atlantean)
• Kingsland, William, ed. (1908), A Child's Story of Atlantis, London: Theosophical Pub. Society  — (the account of a nine-year-old clairvoyant medium, edited by Kingsland)
• Steiner, Rudolf; Gysi, Max (1911), The Submerged Continents of Atlantis and Lemuria, Their History and Civilization: Being Chapters from the Akashic Records, Chicago: Rajput Press, https://catalog.hathitrust.org/Record/008680783 
• Leslie, J. Ben.; Van Duzee, C. C. (1911), Submerged Atlantis Restored, or, Rĭn-Gä-Sĕ Nud Sī-Ī Kĕl'Zē (Links and Cycles), Rochester, NY: Austin Publishing Company  — (mediumship reported as received from Atlantean spirits)